Improvement in pipe-joints



UNITED STATES PATENT OFFICE.

BYRON JENNLNes, OE sAN JOsE, CALIFORNIA.

IMPROVEMENT IN PIPE-JOINTS.

Specification forming part of Letters Patent No. 170,476, dated November30, 1875;

application led April 11, 1874'.

To all whom t may concern:

Be it known that I, BYRON JENNINGs, of the city of San Jos, county ofSanta Clara and State of California, have invented certainl join theends of lengths of wrought-metal pipes, so as to form a perfect andsecure connection between the Sallie 5 and it consists in the means moreparticularly hereinafter pointed `out and claimed.

In the drawing accompanying this speciication, and forming a part ofthev same, Figure l is a plan view, partly in section, showing severallengths of pipe united by the means constituting my invention. Fig. 2 isa plan View, partly in section, showing the `joint when two corrugationsare employed. Fig. 3 is a plan view, partly in section, showing thejoint when one oorrugation is employed. Fig. 4 is a plan view, partly insection, showing the pipes in position ready to have the corrugationssimultaneously made in both pipes.

A represents the outer pipe, having corrugations C G formed therein byswaging, or by any of the well-known methods in common use. Al is theinner pipe, one end of which, B, is inserted in the end of pipe A, andwhich is provided with corrugations D D, which are swaged into thecorrugations C C of said pipe A. The corrugations CC and D D may be.

made in the pipes .A and A simultaneously after the end B of the latteris placed in the end of the former, as shown in Fig. 4. By this means'aperfect and secure joint is provided. This joint may be packed by theuse Of lead or any other suitable substance for the purpose, `which maybe placed in the corrugations G C in the pipe A before the corrugationsD D are madein the pipeA', or between the pipes A and A' when theeorrugations C C and D D are made simultaneously.

Although I show two corrugations, one will, for some purposes, answer,and morethantwo may be employed-when deemed expedient.

Having thus described my i11vention,\vhat I claim as new, and desire tosecure by Letters Patent, is-

The combination of the pipes A and A', the former provided Withcorrugations G G, and the latter with corrugations D D, forced into thecorrugations C C, for the purpose of forining a joint, substantially asshown and de-l scribed.

' BYRON JENNINGS.

Witnesses:

EDWARD HALSEY, D. M. SMITH.

